function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allen, Gerald R. & Erdmann, Mark V.', 1],
    ['Allen, Gerald R. Dr. & Erdmann, Mark V.', 1],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 10],
    ['Bogorodsky, Sergey V. & Alpermann, Tilman J. & Mal, Ahmad O.', 1],
    ['Du, Jianguo & Loh, Kar-Hoe & Hu, Wenjia & Zheng, Xinqing', 2],
    ['Fowler, Henry Weed', 2],
    ['Ho, Hsuan-Ching', 11],
    ['Ho, Hsuan-Ching & Chang, Chia-Hao & Shao, Kwang-Tsao', 2],
    ['Ho, Hsuan-Ching & Heden, Miranda Van', 2],
    ['Ho, Hsuan-Ching & Johnson, Jeffrey W.', 2],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 2],
    ['Johnson, Jeffrey W. & Wilmer, Jessica Worthington', 5],
    ['Matsunuma, Mizuki & Mazlan, Abd Ghaffar & Arshad, Aziz', 2],
    ['Randall, John Ernest Dr.', 2],
    ['Randall, John Ernest Dr. & Yamakawa, Takeshi', 2],
    ['Other (21)', 21]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=68)',
    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);