function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anker, Arthur', 4],
    ['Anker, Arthur & Pachelle, Paulo P. G.', 7],
    ['Anker, Arthur & Vera Caripe, Jonathan A. & Lira, Carlos', 1],
    ['Felder, Darryl L. & Dworschak, Peter C.', 2],
    ['Komai, Tomoyuki', 2],
    ['Komai, Tomoyuki & Fujita, Yoshihisa', 1],
    ['Komai, Tomoyuki & Watanabe, Tetsuya & Matsui, Shoko', 1],
    ['Liu, Wenliang & Liu, Ruiyu & Liu, J. Y.', 1],
    ['Mantelatto, Fernando L. & Al, Et', 1],
    ['Ngoc-Ho, Nguyen', 1],
    ['Pachelle, Paulo P. G. & Anker, Arthur & Mendes, Cecili B.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=22)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);