function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Antonín, Vladimír & Ryoo, Rhim & Ka, Kang-Hyeon & Sou, Hong-Duck', 5],
    ['Durán-Ramírez, Carlos Alberto & Dias, Roberto Júnio Pedroso', 1],
    ['Filippova, Nina & Zvyagina, Elena & Rudykina, Elena', 1],
    ['Ge, Yupeng & Liu, Zewei & Zeng, Hui & Cheng, Xianhao & Na, Qin', 4],
    ['Jarvis, Charlie', 2],
    ['Karunarathna, Samantha C. & Priyashantha, K Hasith', 48],
    ['Kim, Ji Seon & Cho, Yoonhee & Park, Ki Hyeong & Park, Ji Hyun', 12],
    ['Kiyashko, Anna A. & Malysheva, Ekaterina F. & Antonín, Vladimír', 5],
    ['Niveiro, Nicolas & Ramirez, Natalia A. & Michlig, Andrea', 3],
    ['Paredes-León, Ricardo & Klompen, Hans & Pérez, Tila M.', 7],
    ['Ramírez, Natalia A. & Niveiro, Nicolás', 2],
    ['S, Jadson José & Oliveira, ouza de & Capelari, Marina', 16],
    ['Sharafudheen, Shahina A. & Manimohan, Patinjareveettil', 2],
    ['Zambrano-Forero, Cristian J & Davila-Giraldo, Lina R', 11],
    ['de la Fuente, Javier Isaac & García-Jiménez, Jesús', 3],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=129)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);