function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bleeker, Pieter', 1],
    ['Day, F.', 1],
    ['Ikhwanuddin, Mat Esa Mohd & Amal, Mohammad Noor Azmai', 1],
    ['Inger, R. F. & Chin, P. K.', 1],
    ['Kottelat, Maurice', 1],
    ['Mori, T.', 1],
    ['Ng, Casey Keat Chuan & Lim, Teow Yeong & Ahmad, Amirrudin', 2],
    ['Ng, H. H. Tan H. H.', 2],
    ['Ng, Heok Hee & Hadiaty, R. K.', 1],
    ['Ng, Heok Hee & Hadiaty, Renny K.', 2],
    ['Nichols, J. T.', 2],
    ['Popta, C. M. L.', 1],
    ['Tchang, T. - L.', 2],
    ['Vaillant, L. L.', 2],
    ['Ye, Enqi & Xing, Yingchun & Zhang, Chunguang & Zhao, Yahui', 5],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=32)',
    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);