function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arias, Andres & Barroso, Romulo & Anadon, Nuria', 2],
    ['Bleeker, Joke & Harris, Leslie & Ten Hove, Harry A.', 6],
    ['Faulwetter, Sarah & Simboura, Nomiki & Katsiaras, Nikolaos', 16],
    ['Gunton, Laetitia M. & Kupriyanova, Elena K. & Alvestad, Tom', 5],
    ['Jimi, Naoto & Kimura, Taeko & Ogawa, Akito & Kajihara, Hiroshi', 2],
    ['Jordan, David Starr & Snyder, John Otterbein', 2],
    ['Mikac, Barbara', 3],
    ['Neal, Lenka & Wiklund, Helena & Gunton, Laetitia M.', 7],
    ['Ribas, Julia & Hutchings, Pat', 6],
    ['Salazar-Vallejo, Sergio I.', 57],
    ['Salazar-Vallejo, Sergio I. & Carrera-Parra, Luis F.', 13],
    ['Sun, Yue & Li, Xinzheng', 3],
    ['Yanez-Rivera, Beatriz & Carrera-Parra, Luis Fernando', 2],
    ['Yáñez-Rivera, Beatriz & Salazar-Vallejo, Sergio I.', 10],
    ['Çinar, Melih Ertan', 3],
    ['Other (8)', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=145)',
    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);