function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anderson, W. D. & Collette, Bruce B.', 1],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 2],
    ['Brembach, M.', 5],
    ['Collette, Bruce B.', 3],
    ['Fowler, Henry Weed', 3],
    ['Fowler, Henry Weed & Bean, Barton A.', 1],
    ['Fricke, Ronald & Allen, Gerald R. & Andréfouët, Serge', 1],
    ['Herre, Albert W. C. T.', 3],
    ['Huylebrouck, Jan & Hadiaty, Renny Kurnia & Herder, Fabian', 3],
    ['Kraemer, Janina & Thieme, Philipp & Hadiaty, Renny Kurnia', 5],
    ['Meisner, Amy Downing', 5],
    ['Mohr, E.', 3],
    ['Ng, Casey Keat Chuan & Lim, Teow Yeong & Ahmad, Amirrudin', 2],
    ['Tan, Heok Hui & Lim, Kelvin K. P.', 4],
    ['Zainal Abidin, Danial Hariz & Lavoué, Sébastien', 2],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=55)',
    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);