function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bauer, Aaron M. & Tchibozo, Sévérin & Pauwels, Olivier S. G.', 1],
    ['Castiglia, Riccardo & Annesi, Flavia & Bezerra, Alexandra M. R.', 2],
    ['Conrad, J. L.', 1],
    ['Figueroa, Alex & Low, Martyn E. Y. & Lim, Kelvin K. P.', 3],
    ['Grismer, L. Lee & Ota, Hidetoshi & Tanaka, Satoshi', 1],
    ['Hernandez, Tomas & Herr, Mark W. & Stevens, Skyler', 1],
    ['Honda, Masanao & Ota, Hidetoshi', 1],
    ['Kirchhof, Sebastian & Wasonga, Victor & Mazuch, Tomáš', 2],
    ['Mccranie, James R.', 1],
    ['Mirza, Zeeshan A. & Gnaneswar, Chandrashekaruni', 2],
    ['Ngo, Hai Ngoc & Nguyen, Huy Quoc & Tran, Hieu Minh', 6],
    ['Yang, Jian-Huan & Chan, Bosco Pui-Lok', 2],
    ['Zhou, Run-Bang & Wang, Ning & Chen, Bei & Liang, Bin', 2],
    ['Ziegler, Thomas & Truong, Nguyen Quang & Schmitz, Andreas', 2],
    ['Šmíd, Jiří & Moravec, Jiří & Kodym, Petr & Kratochvíl, Lukáš', 4],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=37)',
    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);