function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barabanov, Andrei & Milto, Konstantin', 2],
    ['Barabanov, Andrei V. & Doronin, Igor V.', 3],
    ['Das, Indraneil & Lim, Kelvin K. P.', 1],
    ['Das, Indraneil & Yaakob, Norsham', 1],
    ['Grismer, L. Lee & Quah, Evan S. H.', 1],
    ['Honda, Masanao & Nabhitabhata, Jarujin & Ota, Hidetoshi', 1],
    ['Honda, Masanao & Ota, Hidetoshi & Hikida, Tsutomu', 1],
    ['Kliukin, Nikita S. & Bragin, Andrey M. & Nguyen, Tan Van', 1],
    ['Kliukin, Nikita S. & Nguyen, Tan Van & Le, Son Xuan', 1],
    ['Koppetsch, Thore & Böhme, Wolfgang & Koch, André', 1],
    ['Neang, Thy & Holden, Jeremy & Eastoe, Toby & Seng, Rathea', 1],
    ['Quah, Evan S. H. & S, Shahrul Anuar M. & Grismer, L. Lee', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);