function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Asenjo, Angélico & e, Sistemática & de, Bioecologia & Coleoptera', 1],
    ['Buyck, Bart & Eyssartier, Guillaume & Armada, François', 2],
    ['Fachada, Vasco & Pedreiro, Helder & Raimundo, Susete', 1],
    ['Fatima, Nadia & Usman, Muhammad & Khalid, Abdul Nasir', 2],
    ['Filippova, Nina & Zvyagina, Elena & Rudykina, Elena', 2],
    ['He, Xiao-Lan & Horak, Egon & Wang, Di & Li, Tai-Hui', 6],
    ['He, Xiao-Lan & Horak, Egon & Wang, Di & Peng, Wei-Hong', 3],
    ['Izhar, Aiman & Khan, Zaman & Asif, Muhammad & Bashir, Hira', 1],
    ['Izhar, Aiman & Qasim, Tayyaba & Asif, Muhammad', 1],
    ['Izhar, Aiman & Usman, Muhammad & Kiran, Munazza', 3],
    ['Jarvis, Charlie', 2],
    ['Karunarathna, Samantha C. & Priyashantha, K Hasith', 8],
    ['Mao, Ning & Lv, Jing-Chong & Xu, Yu-Yan & Zhao, Tao-Yu & Fan, Li', 2],
    ['Morozova, Olga & Popov, Eugene & Alexandrova, Alina', 4],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 2],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=47)',
    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);