function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Al-Kandari, Manal & Polikarpov, Igor & Nithyanandan, Manickam', 2],
    ['Appadoo, C & Myers, AA', 2],
    ['Gamô, Sigeo', 1],
    ['García-Madrigal, María Del Socorro', 1],
    ['Kim, Kyung-Won & Zhang, Xin & Choi, Jae-Hong & Kim, Jun', 2],
    ['Krapp-Schickel, Traudl & Sket, Boris', 2],
    ['Labay, Vjacheslav S.', 4],
    ['Leach, William Elford', 1],
    ['Lowry, J. K. & Springthorpe, R. T.', 2],
    ['Momtazi, Farzaneh & Sari, Alireza & Maghsoudlou, Abdolvahab', 1],
    ['Ortiz, Manuel & Winfield, Ignacio', 1],
    ['Springthorpe, Roger T.', 3],
    ['Thacker, Dimple & Patel, Krupal & Myers, Alan', 4],
    ['Tomikawa, Ko & Hirashima, Kentaro & Hirai, Atsushi', 1],
    ['White, Kristine N. & Sir, Sally J.', 2],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=30)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);