function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Al-Handal, Adil Y. & Riaux-Gobin, Catherine & Abdulla, Dawood S.', 1],
    ['Al-Handal, Adil Y. & Riaux-Gobin, Catherine & Jahn, Regine', 4],
    ['Al-Handal, Adil Y. & Torstensson, Anders & Wulff, Angela', 6],
    ['Guerrero, José M. & Riaux-Gobin, Catherine & Debandi, Juan I.', 1],
    ['Joh, Gyeongje', 29],
    ['Riaux-Gobin, Catherine & Compère, Pierre & Jordan, Richard W.', 3],
    ['Riaux-Gobin, Catherine & Compère, Pierre & Romero, Oscar E.', 1],
    ['Riaux-Gobin, Catherine & Frankovich, Thomas & Witkowski, Andrzej', 3],
    ['Riaux-Gobin, Catherine & Garcia, Marinês & Witkowski, Andrzej', 1],
    ['Ruwer, Daiane Trevisan & Rodrigues, Liliana', 1],
    ['Suzuki, Hidekazu & Nagumo, Tamotsu & Tanaka, Jiro', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=51)',
    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);