function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ali, Qadeer Mohammad & Shaikh, Iqra & Thandar, Ahmed', 1],
    ['Pawson, David L. & Pawson, Doris J. & King, Rachael A.', 1],
    ['Prata, Jéssica & Manso, Cynthia L. C.', 1],
    ['Rowe, Francis W. E. & Massin, Claude', 1],
    ['Rowe, Frank & Richmond, Matthew', 1],
    ['Samyn, Yves & Vandenspiegel, Didier & Massin, Claude', 2],
    ['THANDAR, AHMED S.', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=10)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);