function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allen, Gerald R. Dr.', 2],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 10],
    ['Anthony C. Gill & Alasdair J. Edwards', 4],
    ['Bleeker, Pieter', 5],
    ['Gill, Anthony C.', 6],
    ['Gill, Anthony C. & Allen, Gerald R.', 3],
    ['Gill, Anthony C. & Allen, Gerald R. & Erdmann, Mark', 5],
    ['Gill, Anthony C. & Edwards, Alasdair J.', 4],
    ['Gill, Anthony C. & Randall, John Ernest Dr.', 4],
    ['Gill, Anthony C. & Zajonz, Uwe', 9],
    ['Herre, Albert W. C. T.', 5],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 4],
    ['Laan, Richard Van Der & Eschmeyer, William N. & Fricke, Ronald', 4],
    ['Lubbock, Roger', 13],
    ['Winterbottom, Richard', 7],
    ['Other (47)', 53]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=138)',
    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);