function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ardoin, P.', 1],
    ['Fairmaire, Léon', 1],
    ['Hegde, V. D.', 1],
    ['Masumoto, Kimio', 93],
    ['Masumoto, Kimio & Akita, Katsumi', 53],
    ['Pic, Maurice', 6],
    ['Thomas, Michael C. & Elizabeth Okins, Katherine', 1],
    ['Wang, W. Q. & Li, P. & Yuan, C. X.', 1],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 1],
    ['Yuan, Cai-Xia & Ren, Guo-Dong', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=161)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);