function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Deepna Latha, K. P. & Haridev, P. & Anil Raj, K. N.', 1],
    ['Karunarathna, Samantha C. & Priyashantha, K Hasith', 8],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 1],
    ['Wang, Chao-Qun & Zhang, Ming & Li, Hai-Jiao & Huang, Hao', 1],
    ['Wang, Chao-Qun & Zhang, Ming & Li, Tai-Hui', 3],
    ['Zambrano-Forero, Cristian J & Davila-Giraldo, Lina R', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=16)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);