function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alonso-Zarazaga, Miguel A.', 5],
    ['Arzanov, Yu. G. & Martynov, V. V. & Nikulina, T. V.', 15],
    ['Barševskis, Arvīds & Janovska, Marina & Aksjuta, Kristīna', 7],
    ['HAMILTON, ROBERT W.', 17],
    ['Hamilton, R. W.', 35],
    ['Hamilton, Robert W.', 15],
    ['Kuschel, Guillermo', 3],
    ['Legalov, A. A.', 22],
    ['Legalov, A. A. & Shevnin, E. Yu.', 10],
    ['Liang, Xingcai & Li, Xueyan', 6],
    ['Linnaeus, Carolus', 12],
    ['Riedel, Alexander', 50],
    ['Xie, Meng & Liang, Xingcai', 7],
    ['Yunakov, Nikolai & Nazarenko, Vitalij & Filimonov, Rostislav', 10],
    ['Zaragoza-Caballero, Santiago & Rodríguez-Mirón, Geovanni M.', 7],
    ['Other (27)', 32]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=253)',
    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);