function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Belle, Jean', 9],
    ['Dijkstra, Klaas-Douwe B. & Kipping, Jens & Mézière, Nicolas', 17],
    ['Dow, Rory A. & Stokvis, Frank & Ngiam, Robin W. J.', 10],
    ['Gonzalez Soriano, Enrique & Noguera, Felipe', 7],
    ['Kompier, Tom', 8],
    ['Kosterin, Oleg E.', 9],
    ['Legrand, Jean', 19],
    ['Lieftinck, M. A.', 20],
    ['Martin, R.', 9],
    ['Mauffray, William F. & Tennessen, Kenneth J.', 9],
    ['Molineri, Carlos & Rodríguez, José Sebastián & Leiva, Marta', 7],
    ['Syoziro Asahina', 11],
    ['Torres-Pachón, Mónica & Novelo-Gutiérrez, Rodolfo', 15],
    ['Wilson, Keith Duncan Peter & Xu, Zaifu', 26],
    ['Zhang, Hao-Miao & Kosterin, Oleg E. & Cai, Qing-Hua', 11],
    ['Other (73)', 153]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=340)',
    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);