function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akin, Kesran & Gözüaçik, Celalettin & Seven, Erdem', 1],
    ['Alipanah, Helen & Asselbergs, Jan & Malm, Tobias', 9],
    ['Garre, Manuel J. & Girdley, John & Guerrero, Juan J.', 3],
    ['Gumhalter, Danijela & Kučinić, Mladen & Šašić, Martina', 12],
    ['Mbata, Keith J. & Prins, Jurate De', 2],
    ['Shin, Bora & Choi, Sei-Woong & Kim, Sung-Soo', 3],
    ['Sinev, Sergey Yu. & Korb, Stanislav K.', 3],
    ['Singh, Navneet & Ranjan, Rahul & Talukdar, Avishek', 5],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 1],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 1],
    ['Yepishin, Viktor & Khalaim, Yevhenii & Budashkin, Yuriy', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=41)',
    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);