function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Agís, José Ansín & Vervoort, Willem & Ramil, Fran', 5],
    ['An, Yuan-Yan & Zeng, Xiang-Yu & Geng, Kun & Hyde, Kevin David', 2],
    ['Bakhshi, Mounes & Arzanlou, Mahdi & Babai-Ahari, Asadollah', 6],
    ['Calder, Dale R.', 2],
    ['García-Prieto, Luis & Falcón-Ordaz, Jorge', 3],
    ['Haituk, Sukanya & Suwannarach, Nakarin & Hongsanan, Sinang', 3],
    ['Haituk, Supitchakorn Thungdee Sukanya & Withee, Patchareeya', 6],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 3],
    ['Iturrieta-Gonzalez, Isabel & Garcia, Dania & Gene, Josepa', 6],
    ['Mary & Croy', 3],
    ['Phon, Chooi-Khim & Kirton, Laurence G. & Kuah, Meng-Kiat', 6],
    ['Russell A. Mittermeier & Don E. Wilson', 4],
    ['Trovao, Joao & Tiago, Igor & Soares, Fabiana', 3],
    ['Vidal, Jacques & Kirkendale, Lisa', 3],
    ['Wijayawardene, Nalin N. & Dai, Dong-Qin & Premarathne, Bhagya M.', 25],
    ['Other (22)', 28]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=108)',
    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);