function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Artaev, Oleg & Ruchin, Alexander B.', 1],
    ['Chen, I. - S. & Kottelat, Maurice', 1],
    ['Chen, J. T. F.', 1],
    ['Chen, W. & Zheng, C. - Y.', 1],
    ['Fowler, Henry Weed & Bean, Barton A.', 1],
    ['Herre, Albert W. C. T.', 1],
    ['Hu, Jiantao & Lan, Chun & Li, Chenhong', 1],
    ['Iwata, Akihisa & Jeon, S. - R. & Mizuno, N. & Choi, K. - C.', 1],
    ['Iwata, Akihisa & Sakai, H.', 1],
    ['Laan, Richard Van Der & Eschmeyer, William N. & Fricke, Ronald', 1],
    ['Mai, D. Y.', 2],
    ['Ye, Enqi & Xing, Yingchun & Zhang, Chunguang & Zhao, Yahui', 1],
    ['Zhou, Mingwei & He, Anyou & Wang, Fangxin & Li, Yusen', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=14)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);