function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alekseev, Vitalii I. & Bukejs, Andris', 2],
    ['Alekseev, Vitaly I.', 1],
    ['Bouchard, Patrice & Bousquet, Yves & Davies, Anthony E.', 1],
    ['Dejean, Pierre François Marie Auguste', 1],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 3],
    ['Hsiao, Yun & Pollock, Darren A. & Barclay, Maxwell V. L.', 5],
    ['Ji, Qiaoqiao & Ren, Guodong', 3],
    ['Majka, Christopher G. & Pollock, Darren A.', 7],
    ['Mitter, Heinz', 1],
    ['Pollock, Darren', 13],
    ['Pollock, Darren A.', 20],
    ['Tamutis, Vytautas & Ferenca, Romas & Pollock, Darren A.', 3],
    ['Webster, Reginald P. & Sweeney, Jon D. & DeMerchant, Ian', 7],
    ['Webster, Reginald P. & Webster, Vincent L.', 4],
    ['Zaragoza-Caballero, Santiago & Rodríguez-Mirón, Geovanni M.', 2],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=79)',
    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);