function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Hossain, Md. Shamim & Kwon, Jin Hyung & Suh, Sang Jae', 6],
    ['Oh, Sumin & Lim, Jongok & Lee, Gwan-Seok & Kim, Il-Kwon', 5],
    ['Song, Yuehua & Li, Zizhong', 6],
    ['Zhou, Xian & Dietrich, Christopher H. & Zhang, Yalin', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=24)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 4, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);